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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 13 May, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105896
Origin ASes present in the Internet Routing Table: 10792
Origin ASes announcing only one prefix: 3942
Transit ASes present in the Internet Routing Table: 1432
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 1
Number of addresses announced to Internet: 1245265867
Equivalent to 74 /8s, 57 /16s and 63 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15898
Prefixes being announced from the APNIC address blocks: 14453
APNIC Region origin ASes present in the Internet Routing Table: 1244
APNIC Region origin ASes announcing only one prefix: 442
APNIC Region transit ASes present in the Internet Routing Table: 205
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 70811835
Equivalent to 4 /8s, 56 /16s and 128 /24s
Percentage of available APNIC address space announced: 69.6
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73314
Prefixes being announced from the ARIN address blocks: 50423
ARIN Region origin ASes present in the Internet Routing Table: 6577
ARIN Region origin ASes announcing only one prefix: 1974
ARIN Region transit ASes present in the Internet Routing Table: 685
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182796385
Equivalent to 10 /8s, 229 /16s and 64 /24s
Percentage of available ARIN address space announced: 83.8
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479
ARIN Address Blocks 63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 16668
Prefixes being announced from the RIPE address blocks: 13016
RIPE Region origin ASes present in the Internet Routing Table: 2968
RIPE Region origin ASes announcing only one prefix: 1522
RIPE Region transit ASes present in the Internet Routing Table: 541
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 114923978
Equivalent to 6 /8s, 217 /16s and 153 /24s
Percentage of available RIPE address space announced: 76.1
RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /19 equiv Description
1221 1763 675 Telstra
2764 884 164 connect.com.au pty ltd
703 384 205 UUNET Technologies, Inc.
2907 363 884 SINET Japan
4755 321 111 VSNL India
4538 240 1047 China Education and Research
7539 208 90 Delegated to TWNIC for subseq
7657 206 14 The Internet Group Limited
4134 198 637 Data Communications Bureau
7474 189 86 Optus Communications
7545 153 10 TPG Internet Pty Ltd
17561 152 69 Internet service provision to
4740 151 10 Ozemail
1237 149 50 System Engineering Research I
4766 147 598 KORnet Powered BY Korea Telec
4786 125 7 NetConnect Communications Pty
9443 125 23 INTERNETPRIMUS-AS-A
7586 123 9 Paradox Digital Pty. Ltd
9394 123 19 CHINA RAILWAY TELECOMMUNICATI
4736 120 17 Magna Data
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 537 803 UUNET Technologies, Inc.
15870 447 3 Global Center Frankfurt
3301 390 401 TeliaNet Sweden
1257 278 263 Swipnet AB
1270 263 440 UUNET Germany
680 212 938 Deutschef Forschurgsnetz
3215 212 223 RAIN
5515 209 337 Sonera Finland
719 186 146 LANLINK
786 186 952 JANET IP Service
3320 163 710 Deutsche Telekom AG
517 130 136 Xlink
5400 128 33 Concert Internet Plus Europea
8708 126 7 Romania Data System
3303 122 296 Swisscom
2856 120 396 BTnet UK Regional network
1290 101 204 PSINet UK Ltd.
1267 100 978 IUnet S.p.A
1901 92 77 EUnet Austria
1849 91 79 UUNET UK (formerly PIPEX)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2369 3787 UUNET Technologies, Inc.
705 1148 54 UUNET Technologies, Inc.
7018 1019 3286 AT&T
1 949 4464 BBN Planet
7046 800 553 UUNET Technologies, Inc.
3491 679 180 CAIS Internet
1239 639 1606 Sprint ICM-Inria
2914 591 1184 Verio, Inc.
3561 544 1216 Cable & Wireless USA
4293 499 52 Cable & Wireless USA
18994 492 5 Global Crossing
690 465 54 Merit Network
209 459 735 Qwest
2548 409 506 Digital Express Group, Inc.
174 389 2670 PSINet Inc.
3908 384 233 Supernet, Inc.
3602 358 73 Sprint Canada
3549 349 526 Global Crossing
3967 340 228 Exodus Communication
4323 340 136 Time Warner Communications, I
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2369 3787 UUNET Technologies, Inc.
1221 1763 675 Telstra
705 1148 54 UUNET Technologies, Inc.
7018 1019 3286 AT&T
1 949 4464 BBN Planet
2764 884 164 connect.com.au pty ltd
7046 800 553 UUNET Technologies, Inc.
3491 679 180 CAIS Internet
1239 639 1606 Sprint ICM-Inria
2914 591 1184 Verio, Inc.
3561 544 1216 Cable & Wireless USA
702 537 803 UUNET Technologies, Inc.
4293 499 52 Cable & Wireless USA
18994 492 5 Global Crossing
690 465 54 Merit Network
209 459 735 Qwest
15870 447 3 Global Center Frankfurt
2548 409 506 Digital Express Group, Inc.
3301 390 401 TeliaNet Sweden
174 389 2670 PSINet Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
60002 RESERVED 64.76.148.0/24 19583 *
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT
1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
60002 RESERVED 200.9.98.0/24 6429 RdC Internet
60002 RESERVED 200.9.99.0/24 6429 RdC Internet
17441 UNALLOCATED 203.131.192.0/24 6347 SAVVIS Communication
65502 PRIVATE 203.166.83.0/24 10084 Western Australian I
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
5555 UNALLOCATED 205.110.64.0/24 721 DLA Systems Automati
5555 UNALLOCATED 205.110.68.0/22 721 DLA Systems Automati
5555 UNALLOCATED 205.110.72.0/21 721 DLA Systems Automati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised IANA Reserved Addresses
----------------------------------
Network Origin AS Description
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:5 /10:6 /11:9 /12:30
/13:73 /14:203 /15:341 /16:6937 /17:1156 /18:2129
/19:6653 /20:5162 /21:4511 /22:6781 /23:8702 /24:60795
/25:266 /26:454 /27:453 /28:460 /29:383 /30:300
/31:1 /32:65
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:362 13:10 15:1 17:2 24:689
26:1 32:12 38:578 44:3 47:1 53:2
55:1 57:11 61:30 62:120 63:1942 64:1624
65:537 66:318 128:36 129:122 130:23 131:36
132:9 133:1 134:168 135:11 136:17 137:120
138:245 139:49 140:140 141:165 142:61 143:41
144:139 145:9 146:138 147:135 148:95 149:123
150:27 151:300 152:683 153:32 154:17 155:80
156:43 157:108 158:174 159:76 160:27 161:56
162:62 163:134 164:96 165:122 166:178 167:138
168:77 169:34 170:265 171:2 192:5444 193:1944
194:2082 195:772 196:400 198:3649 199:3378 200:2025
201:1 202:2458 203:4966 204:3353 205:2245 206:2824
207:2888 208:2952 209:3117 210:756 211:153 212:870
213:402 214:9 215:12 216:3009 217:225
End of report
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